Lubricating apparatus



1927. July F. E. EVANS LUBRICATING APPARATUS Filed April 9. 1925 2 Sheets-Sheet l lNVENTOR fZn/oxy 00125 BY Wm I Q J ATTORNEY July 59 1927. 1,634,458

F. E. EVANS LUBRI CAT I NG AP PARATU 5 Filed April 9. 1925 2 Sheets-Shet 2 INVENTOR fza/aa 4551005 Patent July 5,

FATE

FEIWQN EVAN 'S, OF Iii-EDMOND, WASHINGTON.

V LUBEIGATIHG APPARATUQJ I Application filed April a was. Serial No. 21,870.,

grease and an outlet whereby grease canbe applied to motor vehicles as required in a more facile way than has heretofore been commonly employed; to aiiord a, cylinder capable of carrying a charge of compressed air in suficient quantity to actuate the pump,

in a practical manner, through a compressed air motor; to provide simple but efiective means for controllin the air and grease; and, to afiord a lubricating apparatusthat is portable, notwithstanding it. carries its own power.

In the accompanying drawings- Figure 1 is a plan view of the entire device as connected up with a control member for air and grease, and indicating, in broken sections, the nozzle for applying (grease;

Fig. 2, a side elevation of the evice, the air tubes connecting upwith the 'com ressed air cylinder and the pump being roken awa F1g.' 3, a top plan view of said control member;

Fig. i, a longitudinal section of the same, drawn on the line H, of Fig. 3;

Fig. 5, a cross section of the same, drawn on the line 5-5, of Fig, 3;

Fig. 6, a cross section of the same, drawn on the line 6-6, of Fig 3;

Fig. 7, a cross section of the same, drawnon the line 77, of Fig. 3;

Fig. 8, a vertical section particularly illustr'ating the compressed air motor, grease pump and connections therebetween, and a ball check valve disposed between'the pump and the grease reservoir, said reservoir and the air connection for the motor being broken away;

And, Fig, 9, a cross section, drawn on the line 9-4), of Fig, 8, showing said valve, and another ball check valve operable between the grease outlet tube and the piston chamber of the pump,

Referring more particularly to the draw 'ings, the frame 1, is provided atits front ortion with a pair of wheels 2 and a platorm 3, at'its rear portion with a pair of handles 4, and a pair of oppositely disposed legs 5, which obviously are designed to pro vide mountings for the more essential parts of the device and permit it to be "wheeled about.

A compressed air cylinder 6 is secured longitudinally of the frame by the bands T and 8, and it is provided with an inlet port 9, an outlet port 10, and an air pressure gauge 11, designates a grease reservoir,

which comprises a smaller cylindrical container 20, threadedly engaged at one end with the castin 21, and resting at the other end in a semicy indrical support 22. Under this construction the reservoir can be easily demounted, if desired, for cleaning, A. rod

23, having at one end an annular handle;

24,, an enlarged portion at the other end, and a follower 26 slidablymountod thereon, conformable in contour to the interior 0- riphery of the reservoir, is disposed wit in the reservoir. The functions of said rod and parts just mentioned in connection therewith will be described hereinafter. The casting 2l,secured to the platform 3, will likewise be described with more particu larity.

The compressed air motor, in the present embodiment of the invention, comprises a cylinder consisting of a casting 30, which] serves as a top portion. and as a guide for the piston 31, a body 32, of standard tubing, in t readed engagement with the casting30, and a castin 33, which constitutes the lower portion of t e c lindcr, and is also threadedly engaged wlth the body. Said casting 33 is provided with a pair of dependent spaced lugs 34, which straddle a longitudinally disposed web section ofthe casting 21, andafi'ord a pivotal connection for the motor therewith, as indicated at 35. 36 denotes an air inlet port for the motor, threaded to the casting 33, the same being more partic ularly shown 1n Fig. 8

The grease pumplconsists or a chamber 40, the lower portion of which communicates with the grease reservoir 2%, It is an integral part of the casting 21, and machined out to accommodate a piston 41, which has, as'a stufing box, a casting 42 in threaded engagement with the body of the chamber,

as indicated at 43, and which also serves as the to portion of said chamber, A ball check va ve 44 controls the inlet port 45 tor the grease from the reservoir into the chamber to, and another ball check valve v ive just elesetiheel we lL-u member eez I. meet el in W tie. e hetly rectangular i? 02 p2 evhleel with e three el er eegeethg the tht'eetleel eeeeeet. e I: tehe 6%., es eleteileel eemmehieetee With pertiems e e velve, e empvisteg fihw h 2 2, epeeieg "5 3% for $3 valve W clehetes e p :thteetleclly e a .velve ehemhet heel serves erreet, 75 e valve seat tween the valve spti ted te metiee r F9 deeetes h eh in e Jhihg eemmeeicetiee heta edjeeeet theteten The tuhr teem the eemptessedl air i a, up withthe eeetrel metehet why thet jest ihelieete lie tt e@ emel as this secehcl velve is id eeestteetlee with the velve met-eel the parts we elven the same time, es will he heteelhy referring te l eit pet-t 8U is shevm in 3 met 6, the same utilized, will lfllltllGl n peer tel exhausting eit eelt et em eff its pisteiea 'ewey Z9 i te the ehemhet velve the tehe @l iete. F m eetepresseel all, thus eenveyecl, tpvvertl teeter PIS- hieh through the cenhectiees pret'tS e devvevvetd thrust te the pis- The .eetemetic elesing reed! valve, efieeterl es is evizre se et its spindle, shuts eff l i from said cylinder, leaving :1 en in the meter. The epeieieg heeled velve in the eeetrel hleeh, which is eeeeeeteel up with the tuhe e1 leading te the Le ter, ellevvs the. ehetge \Uftlil in the meter to escape through the air pert 8t) petticuleily shevve Figs. 8 ehcl Zthee thteugh the action et the spiral springs 57., the lllOtOFi piston is brought letv1evverdly to its limit enel ee. epvvetel thrust exetteet en pistee ef the pump, thereby filling the eehemher 01? the pp with grease. The welve lest tet'etveel te heieg else eutema-tieelly eleset through teleese eff its spindle, the tleviee is new in eeeeitiee fer greasing epemtieesu A repetitiee of the movements jest dGSGIilOStl which in short ceesist, as far the @IQSPEMJQE' is immefietely eeheemgal. in the epeeieg et eee velve its eetemetie elest met the epeeieg et the ether valve will heme e, ehetge e1? grease thretwh the eezzle tee gteesing epetetieh, isevieleet, eetemetie elesieg elf the seeeml valve will mehe the device/ready tett eeethev like epetetieen v l eeetemplete that the ehemhev ef the pump will heve e eepeeity which will, in eeeeeettee with the imstreetelities cemreeeieetieg 'thetewith supply et 'eeeh ep- Wercl ettehe et the meter pistem charge ezt 'gteese sech es is evdinetily required; hut es it will he seen, my quantity necessary can he forced quickly threegh the device, as desiretlt Thie lehrieetieg eppetetus, metmteel en Wheels eeel eelmveeieet handles, is

teem theeee lltl extremely handy in greasing vehicles which are not readil ofcompresse air, as it can be easily moved, and it is not necessary to handle long or heavy tubing connected with a remote supply of air. It eliminates the drudgery 1ncident to the use of manually operated grease guns, and does more efi'ective greasing than can be accomplished thereby-especially noticeable where large trucks, or the like, are involved.

Changes in and modifications of the construction described may be made without'departing from the spirlt of my invention or sacrificing its advantages, hence I ask that lever and the frame, a grease reservoir, a

valve control member for compressed air,

and, operable through said member, means for establishing communication. for com pressed air from the cylinder to the motor, means for discharging air from the motor, and means for discharging grease from the P P- a 2. In a grease gun, a compressed ,air supply, a grease supply, a pump operable to withdraw a charge of grease from the supply and then discharge the same, a motor for actuating the pump, a flexible conduit leading from the compressed air supply, and a flexible conduit leading from the motor, a hea connecting saidv conduits, and independently operable valves carried by the-head, one of accessible to the usual source a rocker arm pivotawhich controls communication between saidconduits through the head and the .othercommunication of the motor through said head with the atmosphere.

3. In a lubricating apparatus, the combination of a tubular member for carrying a a head closing one end of a portion therebein in valvegrease supply, said member, a pump having of formed by said head an controlled communication with t e interior of the member; a cylinder and piston also mounted on said head in lateral spacement from the pump, and operative connections between the piston and pump.

.4. In a'lubricating apparatus, the combination of a tubular member for carrying a grease supply, a head closing one end of said member, a pum having a portion thereof formed by said ead' and being in valve controlled communication with the interior of the member; a cylinder and piston also mounted on said head in lateral spacement from the pump, a standard supported by the head between the c linder an pump, and

to the piston and pump. y

5.. In a lubricating apparatus, the combination of a tubular member forcarrying a grease supply, a head closing one end of said member, a pump having a portion thereof formed by said. head and being in valvecontrolled communication with the interior y carriedby the standard and having its ends pivoted respectively 5 of the member; a cylinder and piston also mounted on said head in lateral spacement from the pump, a standardpivotall ported by the head between the cylin pump, and a rocker arm pivotally carried by sup the standard and having its ends pivoted red spectively to the piston and pump.

rENToN E. EVANS'.

er and 

